ch 7 part 5 endochondral and intramembranous ossification steps

Question 1

1st step of intramembranous ossification

Answer 1

Ossification centers form within thickened regions of mesenchyme

Question 2

2nd step of intramembranous ossification

Answer 2

Osteoid undergoes calcification

Question 3

3rd step of intramembranous ossification

Answer 3

Woven bone and surrounding periosteum form

Question 4

4th step of intramembranous ossification

Answer 4

Lamellar bone replaces woven bone

Question 5

Woven bone in intramembranous ossification

Answer 5

Primary bone - lines up a lot of spongy bone

Question 6

Lamellar bone

Answer 6

Secondary bone - becomes compact bone

Question 7

1st step of endochondral ossification

Answer 7

Fetal hyaline cartilage model develops and chondroblasts secrete cartilage matrix

Question 8

2nd step of endochondral ossification

Answer 8

Cartilage calcifies and chondrocytes produce holes in the matrix important for vessels to move through

Question 9

3rd step of endochondral ossification

Answer 9

Primary ossification center forms in diaphysis

Question 10

4th step of endochondral ossification

Answer 10

Secondary ossification centers form in epiphyses (ends of long bone)

Question 11

5th step of endochondral ossification

Answer 11

Bone replaces cartilage, except articular cartilage and epiphyseal plates

Question 12

6th step of endochondral ossification

Answer 12

Epiphyseal plates ossify and form epiphyseal lines